Originally Posted by cowboyeric8
Get healthy on D and it will be just fine.
I agree for the most part.
I want to emphasize that I'm not dismissing the 4-3 defense. I simply don't think the Cowboys should make a switch at this point.
Having said that, with the recent proliferation of read option offenses around the league, we may see a league wide transition to the 4-3. The primary benefit of a 3-4 is its ability to disguise rushers and create confusion in blocking assignments. This is ideal when playing against pocket passers like Manning and Brady who aren't a threat to run.
However, the 3-4 is a slower defense overall than the 4-3; the 3-4 requires bigger linemen and bigger linebackers. The 4-3 utilizes more linemen, meaning the linebackers can be smaller because they don't have to shed blockers. Consequently, the linebackers tend to be faster and have better sideline-to-sideline speed, making them ideal for defending read option run plays.
Just my two cents...
"Many of the greatest things man has achieved are not the result of consciously directed thought, and still less the product of a deliberately coordinated effort of many individuals, but of a process in which the individual plays a part which he can never fully understand." - Friedrich Hayek